Idiot first meant a private person or layman, not a public figure. Athenians valued showing up.
In Athens, an idiōtēs was a private person or layman, as opposed to a public official or a trained expert. A popular reading adds: someone who stayed out of public life. Over the centuries the word slid from 'private person' to 'layman', then 'ignorant', and finally the insult we use today.
Skipping the school board meeting and then complaining about it? Athens had a word for that.
Use it as a nudge to show up: 'Don't be an idiōtēs. Come to the planning meeting.'
Practice it in Skepsis